Package wrapping



March 20, 1945. H. B. TUTHILL EI'AL 2,371,858.

PACKAGE WRAPPING Filed Nov. 13, 1942 Patented Mar. 20, 1945 PACKAGE WRAPPING Howard B. Tuthill and Harry F. Caldwell, Grand ch., assign!!! to Oliver Machinery Company, Grand Rapids, Mich., a limited partnership Application November 13, 1942, Serial No. 465,438

Claims.

This invention relates to article wrapping and is concerned with a simple and novel method of wrapping, being particularly useful in wrapping articles of a cylindrical or similar outline. One place where such wrapping is of utility i in conjunction with rolls of adhesive tape which are wound in cylindrical form around a central core. Other articles of similar shapes, such as small cylindrical boxes in which a plurality of small articles are contained may likewise be wrapped in the same manner. With our invention an exclusion of moisture, dust and other undesirable foreign materials may be secured in a very practical and simple manner. The wrapper used preferably will be of Cellophane but it is to be understood that other wrappers of thin material capable of cementation upon the application of heat may be used, such as thin paper wrappers which may be coated at one side at least with thermo-plastic adhesive material.

With our invention two wrapping members of identical shape are used each square in outline, there being no waste of material as the square wrapping members may be cut one after another from a continuous length of the wrapping material having the proper width. The lineal dimensions of the square wrapping members are somewhat in excess of the diameter of the cylindrical member to be wrapped so that when the cylindrical member is placed upon the wrapper centrally thereof marginal portions of the wrapping member extend beyond the member which is being wrapped in all directions and with the corner portions of the wrapping member extending greater distances than the portions between said corner portions. Such marginal portions are turned upwardly against the sides of the cylindrical member, for example, a roll of tape, while the corner portions extend partly above said tape roll or other like member which is being wrapped and are turned inwardly over the upper side thereof. The second wrapper member placed at the opposite fiat side of the tape roll but positioned with respect to the ilrst wrapper member so that its corner portions project with reference to the first wrapper member between the corners thereof has its marginal portions turned against the sides of the cylindrical article which is bein wrapped with its projecting comer portions turned inwardly and over the opposite fiat side of the cylindrical member and against the first wrapping member which has been appliedj and upon the application of heat the wrapper members are sealed together, covering and enclosing the cylinagainst the entrance of outside undesirable material. All of the corner portions of the last mentioned wrapper need not necessarily be sealed in place but one may remain disconnected so that it may be grasped for quick and easy removal of the wrapper.

An understanding of the invention may be had from the following description taken in connection with the accompanying drawing, in which,

Fig. 1 is a plan view showing a tape roll located centrally upon the first wrapper member applied thereto, and further showing in dotted lines the relative location of the second wrapper used.

Fig. 2 is a section substantially on the plane of line 2-2 of Fig. 1.

Fig. 3 is a side elevation.

Fig.4 is an elevation enlarged showing the first wrapper member after it has been applied to the cylindrical roll, and 1 Fig. 5 is a furtherenlarged fragmentary elevation showing the completed wrapping of the cylindrical member.

Like reference characters refer to like parts in the different figures of the drawing.

The cylindrical article which is wrapped, indicated at I, for purposes of illustration is shown as a roll of adhesive tape wound around a core 2 in the usual manner. The wrapper member 3, two of which are used are of square outline. The roll of tape placed centrally thereon ha the four corner portions 4 extending outwardly considerable distances from the sides of the tape roll I, while the intermediate portions of the wrapper 3 between said corners extend lesser distances. For example, with a tape roll I having a width of tape approximately the marginal'edge portions of the wrapper at their nearest points to the cylindrical surface of the tape roll extend approxi-- mately though this may be increased if desired. However it is not necessary in practice that such marginal extension be greater. The outermost points of the corners from the curved surface of the tape roll in such case extend beyond the curved surface of the roll approximately 1% so that when the wrapping member is bent upwardly against the curved sides of the roll such corner portions will extend an appreciable distance or approximately V above its upper surface to be bent inwardly over the roll as shown in Fig. 4.

In Fig. 4 the first wrapping member is indicated as having been applied to the roll I, the wrapping material overlapping at points in condrical box, roll of tape or other material wrapped, Bl forming to the surfaces of the roll and with the upper portions of the corner sections 4 turned inwardly against the upper side of the roll.

After the first wrapping member has been thus applied, the roll has applied to the other side thereof an identical wrapper in the same manner, being positioned, as previously stated, so that its corner portions come between the corner portions of the first wrapping member, the edge portions of the wrapping members thereupon overlap at substantially all points and the comer portions of the last applied wrapping member ar bent inwardly over the opposite side of the roll and against the first applied wrapping member. Heat applied, for example, with a wrapper of Cellophone or any wrapper of thin material properly treated with thermo-plastic cementing material will cause the two wrapper members to be cemented together at all contacting portions at which the heat application is made.

' In Fig. 5 one of the corner portions 4 in that part of it which extends above the wrapped articles is indicated as not cemented in place. This leaves a free portion of the wrapper for grasping as an aid in removing the wrapper when the inside article is to be used. Said free corner portion 4 does not necessarily extend vertically but may be bent inwardly and not sealed. Of course all of the corner portions 4 may be sealed if desired.

A package thus wrapped requires a minimum of covering or wrapping material. Labels may be attached to the wrapped package or located within the wrapping material, for example within the core 2 of the adhesive tape roll,

The invention while of a simple character is one which results in economy of materials used and insures full protection of the wrapped article against moisture, dust or other undesired effects.

The invention is defined in the appended claims and is to be considered comprehensive of all forms of structure coming within their scope.

We claim:

1. The method of wrapping cylindrical articles having opposite substantially flat ends which consists, in providing a wrapper member of thin material rectangular in outline and of a size such that marginal portions of the wrapper member extend beyond the exterior curved surface of the cylindrical article to be wrapped when placed at one end substantially centrally thereon, and with corner portions of the wrapper member extending substantial distances beyond said surfaces such that when turned against the sides of the article wrapped, portions of said corner portions extend beyond its opposite end, bending the marginal portions of the wrapper member against the curved outer surface of said cylindrical member and turning the corner portions thereof inwardly over the opposite end, and placing a substantially identical wrapper member against said opposite end of the cylindrical member with its comers between the corners of the first wrappermember and turning said marginal portions of said second earners wrapper member against the outer curved sides of the article wrapped and the corner portions thereof against the other end of the article wrapped, as specified.

2. The method of wrapping cylindrical articles having opposite flat ends which consists, in providing a wrapper member square in outline, the lineal dimension of which at each edge is greater than the diameter of the cylindrical member, placing the cylindrical member to be wrapped substantially centrally thereon and turning the marginal portions of the wrapper member against the curved outer surface of said cylindrical member and bending the terminal portions of the corners of said wrapper member against the other end or said cylindrical member to be wrapped, then placing an identical wrapper member against the opposite end of the cylindrical article and in substantially the same relative position thereto with its corners disposed between the corners of the first wrapper member and bending th marginal portions thereof against the curved sides of said cylindrical article and the terminal portions of the corners of said wrapper member inwardly against the other end of said cylindrical member and over the first wrapper member applied thereto.

3. The method of wrapping cylindrical articles defined in claim 2 wherein each corner portion of one of the wrapper members is disposed substantially midway between two comer portions of the other Wrapper member.

4. The method of wrapping defined in claim 1 wherein said wrapper members are of thin material adapted to be softened and become adhesive under the application of heat, and after the wrapper members have been applied are sealed together at overlapping portions thereof by the application of heat.

5. The method of wrapping cylindrical articles having opposed substantially fiat ends which consists, in providing two wrapper members each of thin material and of rectangular form to be located one against each end of the article to be wrapped and having a size whereby when the central portion of a wrapper member covers an end of said cylindrical member, marginal portions of the wrapper extend beyond the curved surface of the cylindrical member at all parts thereof, bending both of said wrapper members to engage against the curved sides of the article one before the other whereby the last one bent will have portions thereof overlapping portions of the other wrapper member with corner portions of both wrapper members extending beyond the opposite end of the article wrapped and adapted to be turned inwardly, sealing said wrapper members at selected overlapping portions thereof and leaving at least one corner portion of the last wrapper member free from sealing for engagement in removing the wrapper.

HOWARD B. TUTHILL. HARRY F. CALDWELL. 

